Gave up on the smart m_width / m_height adjustments for now. This just won't work the way I imagined it :/
Using a "common" size of 640*512 instead. This means some odd games might use a wrong output surface again (they always did this on the normal upscaler).
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@2190 96395faa-99c1-11dd-bbfe-3dabce05a288